Vehtilatob



B. R. ANDREWS.

VENTILATOR.

APPLICATION FILED JULY 2. I917- l 3@6,8%5v Patented June 17, L919.

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BERNARD R. ANDREWS, OF NEWTON, MASSACHUSETTS.

VENTILATOR.

Specification of Letters Patent.

Patented June 1?, 1913 -Application filed July 2, 1917, Serial Ifl'o. 178,096.

- To all whom it may concern:

' vdescription,

' characters on the drawing representing like parts. v

This invention relates to ventilators such as are adapted to be placed in the window of a room for ventilating the latter, and the object of the invention is to provide a novel ventilator which can be easlly and quickly lnstalled in any window, and which may be operated either to draw outside air into the room or force room air through the ventilator to the outside of the window.

y improved device comprises a panel member constructed to be set into the sashreceiv'ing grooves of the Window frame eit(l11er from the top or the bottom thereof an reversible fan situated in said openin and means for operating said fan so that 1t will I I outside air through the ventilate the room either by blowing fresh opening into the room or by forcing the vltiated room air through the opening to the outside of the building. The device also comprises a vibration-absorbing support for the fan and the motor which operates it so that the device will be relatively noiseless in its operation.

In order to give an understanding of my I invention, I have illustrated in the drawings a selected embodiment thereof which will now be described, after whichthe novel features will be claims.

Figure 1 is a view" of a portion of a window frame having my improved ventilator pointed out in the appended Fig. 2 is an enlarged perspectiye view of the portion .of the ventilating panel having the -'ventilatin'g opening therein, said view ,showing a vibration-absorbing support for the motor, the motor and fan being omitted 1n orderto better illustrate the vibrationabsorbing support;

Flg'. 3 1s asection on the line 3+3, Fig. 1 Fig. 4 .is asection on the line 4+4, Fig. 1.

v I have indicated at 1 the window frame in a room and at 2 aportion of the upper sashin the window.

provided with a ventilating opening, a

tions My improved ventilator comprises a panel.

comprising the sash frame 4 which is divided into three sections by the two vertical stiles or posts 5. The two end sections of the sash contain panes of glass .6. The central section 7 of .the sash is provided with a ven-, tilating opening 8 in which operates a suitable fan 9. The fan 9 is shown as mounted without deon the shaft 10 of an electric motor 11, and

this motor is mounted on a suitable vibration-absorbing shelf or support which is secured to the stiles or posts 5. Any suitable form of vibration-absorbing support may be used. I'have herein illustrated a construction which comprises two rods 12 and 13 which-extend from one stile 5 to the other, and to which the motor 11 is secured. The

rods 12 and 13 are slightly resilientand as a result they act to absorb any Vibration that may be devekyed by the operation of the motor and fan. The rod 13 is provided with the two laterally-bent portions 14, and the ends of' the rod are bent downwardly, as shown at 15, said downwardlybent portions lying against the stiles or posts 5. i The extremities of the downwardly-bent portions 15 are provided with loops or eyes 16 to receive screws 17 by which the rod is secured to the stile 5.

The rod 12 is also provided with the lat-. erally-bent portions 18 which, however, are of. less extent than the laterally-bent por 14, and with the upwardly-bent portions 19 that lie against the stiles 5 and are provided with eyes or loops 20 at their extremzities to receive the screws 21 by which side ofthe'rods and clamped to the motor frame by clamping screws 23. The rods are sufficiently resllient so that they absorb any vibration developed during the operation of the motor, and thus the fan will be practically noiseless.

' structure which may be easil The fan 9 is a reversible fan, that is, the blades are so shaped that the fan will operate equally well when rotated in either direction. When the fan is rotated in one direction it will force air outwardly through the ventilating opening 8, and when it is rotated in the opposite direction it will draw air inwardy throu h said opening. The motor 11 for operatmg the fan is also a reversible motor so that it can be run in either direction. The motor is shown as controlled by a suitable reversing switch 24 which may be located at any convenient place on the window frame and which is connected to the motor by suitable wiring 25.

The ventilating panel with its motor attachment comprises a unitary self-contained installed in any window. I will prefera ly place the ventilating panel at the upper portion of the window, although it may be situated at the bottom of the window ifdesired. When it is placed at the upper part of the window,

I propose to set it into the grooves of the window frame in which the lower sash runs and to placeit at the top of the window, as shown in the drawings. The panel may be held in position by any suitablemeans, such, for instance, as screws 26. The fan is situated in the opening 8 and does not project through the opening, and as the motor is on theinside of the panel, the presence of the panel in the window frame does not interferia1 with raising and lowering the upper sas When it is desired to use the ventilator, theupper sash is dropped until the top rail thereof comes flush with the bottom of the panel and. the fan is set inoperation. In

warm-weather the fan may be rotated in a direction to draw the outside air into the room through the ventilating opening, thus providing the room with fresh air. In the v The apparatus the room air out through the opening 8.

This will keep the room freefrom vitiated air and will induce a proper circulation of air in the room. 7

is a self-contained device and can be manufactured in a variety of sizes to fit the window frames of standard sizes. The device is also simple and can be readily installed in any window frame without makin any alterations therein.

While have illustrated a selected embodiment of my invention, I do not wish to be limited to the constructional features shown.

I claim: 1. A ventilating device comprising a panel member having a thickness substantially equal to that of a window sash aiid a shape to fit into a window framein the plane of the sash, said panel being provided witha ventilating opening, a vibration-absorbing shelf secured to the inner side of the panel and extending from one side to the other of the opening, a reversible motor sustained on said shelf, a fan connected to the motor and operating in said'opening, and means for controlling the direction of rotation of the motor whereby air may be either drawn into the room or forced from the room through said opening, depending on the direction in which said motor is operating.

2. A ventilating device having a panel a member, a vibration-absorbing shelf comprising two resilient rods secured at their ends to the inner side of the panel, a motor clamped to said rods, and a fan carried by said motor.

In testimony whereof, I have signed my name to this specification.

- BERNARD E. ANDREWS. 

